What is the air quality in Capitol Hill today?

The current Air Quality Index (AQI) in Capitol Hill is 39 (Good). PM2.5 concentration is 9.4 µg/m³.

What is the temperature in Capitol Hill right now?

The current temperature in Capitol Hill is 24.4°C (feels like 24.4°C). Humidity is 62.7% and wind speed is 9.2 km/h.

Is it safe to go outside in Capitol Hill?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 2.2 (Moderate).

Air Quality in Capitol Hill, United States

Partly Cloudy

24.4°C · 62.7% humidity

24.4°

Feels 24.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

27 10pm

39 1am

30 4am

29 7am

28 10am

25 1pm

25 4pm

34 7pm

Air Quality Index Trend

46h · 32 stn

View full history →

Capitol Hill's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

62.7%

Humidity

9.2 km/h

Wind W

1012.3 hPa

Pressure

2.2

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

9.4 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Capitol Hill?

Temperature & Precipitation

PM2.5 Trend

46h · 32 stations

PM2.59.4 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX2.2

Moderate

Station readings (1 station within 25 km)

9.4

Median

9.4

Average

9.4

Low

9.4

High

PM2.5 µg/m³ · Model: 6.25 · Bias: -3.2

What is the 7-day forecast for Capitol Hill?

08-03

26.6° 20.1°

5.5 mm

08-04

38.2° 24.0°

08-05

35.0° 20.9°

0.56 mm

08-06

31.6° 22.7°

08-07

34.4° 21.6°

3.19 mm

08-08

37.8° 22.5°

0.75 mm

08-09

36.3° 24.2°

1.37 mm

Both models agree Avg diff: 3.2°C

Where are air quality stations near Capitol Hill?

Lincoln Park NW

0.9 km PM2.5: 6.0 µg/m³

400 Virginia Ave SW

1.6 km PM2.5: 7.0 µg/m³

Friendship Blow Pierce

2.3 km PM2.5: 5.2 µg/m³

Center City Shaw Campus

2.8 km PM2.5: 6.8 µg/m³

Kingman Island - Heritage Island Bridge

2.9 km PM2.5: 5.2 µg/m³

Other Half Brewing

3.1 km PM2.5: 14.2 µg/m³

224 V St. NE

3.3 km PM2.5: 5.6 µg/m³

Lee Montessori R St

3.3 km PM2.5: 2.8 µg/m³

Savannah Terrace SE

3.8 km PM2.5: 4.7 µg/m³

Aslin

3.9 km PM2.5: 6.4 µg/m³

What cities are near Capitol Hill?

39 Capitol Riverfront 39 H Street NE 38 NoMa 39 Downtown DC 39 Southwest Waterfront 38 Northwest One 38 Mount Vernon Triangle 38 Shaw 39 Washington 38 Golden Triangle

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T05:44 UTC.